EP2375523B1 - Mounting box for mounting in a wall - Google Patents

Mounting box for mounting in a wall Download PDF

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Publication number
EP2375523B1
EP2375523B1 EP11161923.5A EP11161923A EP2375523B1 EP 2375523 B1 EP2375523 B1 EP 2375523B1 EP 11161923 A EP11161923 A EP 11161923A EP 2375523 B1 EP2375523 B1 EP 2375523B1
Authority
EP
European Patent Office
Prior art keywords
mounting
mounting flange
flush
flange
box
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP11161923.5A
Other languages
German (de)
French (fr)
Other versions
EP2375523A1 (en
Inventor
Johan Helena Alice Tas
Tom Cooreman
Wim Ferdinand Madeleine Heyndrickx
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Niko NV
Original Assignee
Niko NV
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Filing date
Publication date
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Publication of EP2375523A1 publication Critical patent/EP2375523A1/en
Application granted granted Critical
Publication of EP2375523B1 publication Critical patent/EP2375523B1/en
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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02Details
    • H02G3/08Distribution boxes; Connection or junction boxes
    • H02G3/14Fastening of cover or lid to box
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02Details
    • H02G3/08Distribution boxes; Connection or junction boxes
    • H02G3/12Distribution boxes; Connection or junction boxes for flush mounting
    • H02G3/121Distribution boxes; Connection or junction boxes for flush mounting in plain walls
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02Details
    • H02G3/08Distribution boxes; Connection or junction boxes
    • H02G3/088Dustproof, splashproof, drip-proof, waterproof, or flameproof casings or inlets

Definitions

  • the present invention relates to a mounting box for mounting in a wall for housing therein electrical components such as sockets, switches, etc., according to the preamble of claim 1.
  • Flush mounting box assemblies are a known concept in the electrical industry. They offer the advantage of having an electrical item such as a socket, switch, network connection point, etc. safely built into the wall. With this set-up the necessary cable connections are made inside the mounting box to ensure that, after installation, only a very small part of the functional unit is located on the outside of the wall. Specific features of these flush mounting box assemblies are standardised, including the Belgian NBN C 61-670 standards, to make it easier for the end user to replace installed components without having to replace the flush mounting box.
  • the known type of flush mounting assembly comprises a hollow box open at one end, which can be mounted into a cutout in the wall and is intended to provide a space in which an electrical component can be installed, or partially installed, through the open end.
  • the electrical component With the known mounting box the electrical component is secured in the flush mounting element with screws or clamps.
  • a cover, with a surface area greater than the open end of the flush mounting element and wall opening, is then placed over the electrical component to ensure that the wall opening is covered as necessary.
  • US 7,674,974 which reflects the preamble of claim 1 discloses a plurality of siding flange implementations comprising weatherproof siding flanges combined with an electrical wall box or a while-in-use electrical cover.
  • the siding flange may be integrally formed with the electrical box or removably coupled to the electrical wall box, for example, on an inside surface of the box.
  • the siding flange may comprise a lip extending forward of the siding flange and having one or more grooves therein. The grooves may allow portions of the lip to be removed to adapt to varying siding material thickness.
  • the purpose of this invention is to provide for a flush mounting box with improved dustproof and watertight properties.
  • the mounting box of claim 1 comprises a flange mounted at the open end. When in place the flange is configured to cover the opening in the wall. It is also fixed to the mounting box by means of a watertight seal and can be removed, at least to a large extent, with one or more specific post processing operations.
  • the mounting box based on this invention Due to the fixed connection between the mounting flange and hollow flush mounting box, water penetration is prevented and thus improved waterproofness is guaranteed, irrespective of whether the wall in which the mounting box is housed has an even surface or hot. This makes it possible, for instance, to use the mounting box based on this invention in external walls with a slightly uneven surface, e.g. preformed bricks, uneven plastering or natural stone. Furthermore, by completely or partially removing the mounting flange, the mounting box of this invention can be converted into a reduced form which can be used for other applications.
  • the hollow flush mounting element has a mainly cylindrical external wall with a first closed and a second open end.
  • the wall opening can be made by simply using a hole saw with a diameter slightly larger than the external diameter of the outer cylinder wall.
  • the outer cylinder wall has a diameter between 55 and 80 mm.
  • the mounting flange has essentially a frame shape, with an essentially smooth rear side intended to face the wall when mounted and a front side configured to connect to the cover frame of an electrical component.
  • this embodiment has the advantage that the mounting box can easily be levelled by, for example, placing a spirit level on the horizontal edge of the frame during installation.
  • the essentially smooth rear side of the flange has a groove around its circumference for the application of sealant.
  • This embodiment has the advantage that an additional seal can be achieved between the frame and wall, to seal any gaps between them. On a smooth wall this will prevent the penetration of dust or water into the opening in which the flush mounting element is installed.
  • the seal will preferably be elastomer.
  • the unit made up of the mounting flange and flush mounting element is such that, upon installation in a wall, it can easily be divided, whereby at least the section of the flange protruding from the wall can be sectioned off.
  • the advantage of this embodiment is that the mounting box can thus be adapted to standard dimensions and electrical components built to these dimensions can be mounted in the usual manner.
  • connection between the mounting flange and flush mounting element can be disassembled using a hole saw.
  • This embodiment has the advantage that the same type of tool used to create the hole in the wall can be used to section off the mounting flange.
  • the mounting flange has guide marks on the front to align the hole saw.
  • the guide marks are constructed by a frame type upstanding edge on the front of the mounting flange, within which the hole saw can be positioned, with a diameter that in essence matches the diameter of the open end.
  • the watertight connection is created by applying a watertight adhesive between the mounting flange and flush mounting element.
  • the watertight adhesive is configured to soften upon heating to ensure that the mounting flange can be removed from the flush mounting element once the adhesive seal between the two has been heated. This embodiment has the advantage that the mounting flange can easily be taken off without the risk of damage to the wall or other components of the mounting box.
  • the adhesive is configured to soften at a temperature in excess of 70 degrees Celsius, preferably in excess of 80 degrees Celsius and between 80 and 200°C.
  • the mounting flange and flush mounting element are made of plastic and the watertight seal is created by a plastic weld.
  • This embodiment has the advantage that plastics with good mechanical properties but which are difficult to bond, such as specific types of polypropylene, can still be used to manufacture the mounting box according to the present invention.
  • the mounting flange and flush mounting element consist of a single unit made of plastic.
  • This embodiment has the advantage that extremely high water tightness and mechanical strength can be achieved.
  • a break-off notch is foreseen, which facilitates a simple separation of the mounting flange from the flush mounting element.
  • the mounting flange is equipped with mounting means, protruding from the flush mounting element, coupleable with an electrical component.
  • mounting means protruding from the flush mounting element
  • an electrical component in the mounting box
  • the mounting means and mounting flange are a single piece.
  • These types of mounting means may, for example, comprise one, two or more supports, e.g. brackets, projecting from the mounting flange into the flush mounting element. These supports could then be equipped, for example, with clamps to clamp electrical components or with threaded holes.
  • the present invention also includes a method for post processing of the mounting box according to the present invention, comprising at least the removal, to a large extent, of the mounting flange.
  • this can be achieved by drilling with a hole saw or heating up the adhesive bond.
  • FIGS 1-3 illustrate a first embodiment of a wall mounting box 1 according to the present invention.
  • This type of mounting box is intended to house electrical components such as sockets, switches, etc.
  • the mounting box consists of a flush mounting element 2 and mounting flange 3.
  • the flush mounting element 2 is typically a flush mounting box designed to comply with the Belgian NBN C 61-670 standard or equivalent international standards such as DIN 49073.
  • the hollow flush mounting element 2 has a cylindrical body 21 with an end wall 22 at one end and an opening 23 at the other end.
  • the external diameter of the flush mounting element is typically between 55 and 80 mm, for example, approximately 70 mm.
  • the internal depth of the flush mounting housing is typically between 40 and 80 mm, for example, approximately 50 mm.
  • the flush mounting element 2 can be mounted in an opening in the wall. If the flush mounting element has a cylindrical shape this opening will typically be created using a hole saw.
  • Inside flush mounting element 2 is a space in which components such as sockets or switches can be inserted, at least partially, via opening 23.
  • Mounting flange 3 extends from the open end 24 around opening 23.
  • the mounting flange may also comprise components 35-37 that extend into the body of the flush mounting element, as described in detail below.
  • mounting flange 3 is shaped like a frame with an essentially square external circumference 39 and internal circumference 38, which is adapted to the dimensions of opening 23. The mounting flange will, therefore, extend around the wall opening when mounting box 1 is mounted in the wall.
  • Flush mounting element 2 may also be equipped on the inside with threaded holes 51 for screws 50, which protrude through mounting flange 3.
  • Mounting flange 3 is secured via a watertight connection, for example in this case an adhesive bond or weld, to open end 24 of flush mounting element 2.
  • open end 24 has a smooth circumferential edge which fits against the smooth rear side 31 of the mounting flange. This way the adhesive can easily be applied to this smooth circumferential edge.
  • mounting flange 3 can be removed, at least to a large extent, from flush mounting housing 2 once it is wall mounted via one or more specific post processing operations.
  • Mounting flange 3 and flush mounting housing 2 could, for example, be of injection moulded plastic material with appropriate properties such as polypropylene. If the components are bonded by an adhesive, different material types can be used for the flush mounting element and mounting flange, e.g. a plastic flush mounting housing can be combined with a mounting flange made of another material such as stainless steel.
  • Mounting flange 3 has in essence a smooth rear side 31, which is intended to face the wall when mounted.
  • a circumferential groove 32 for a (not illustrated) seal at the rear is optional.
  • This seal could be in the shape of a sealing gasket extending across the entire rear side 31, between the outer wall of flush mounting element 2 and the external circumference of mounting flange 3, with a chamfer near circumference groove 32.
  • this type of sealing gasket will compensate for any play or openings between the rear of mounting flange 3 and the wall.
  • Mounting flange 3 also has a front 33 intended to connect to a (not illustrated) cover frame or plate, which is part of electrical components such as sockets or switches.
  • a cover frame or plate which is part of electrical components such as sockets or switches.
  • the cover frames and plates usable, for example, for the applicant's known mounting boxes can also be used with the mounting boxes based of the invention.
  • the front is preferably fitted with an upstanding circumferential edge 34. In the illustrated version this upstanding edge 34 has two advantages: it facilitates on the one hand the positioning of a cover frame or plate and on the other hand the positioning of a hole saw within this circumferential edge to drill the mounting flange near open end 24.
  • a special adhesive will be used for the connection between flush mounting box 2 and mounting flange 3.
  • This adhesive will soften at high temperatures, for example from approximately 75°C, i.e. temperatures that exceed the normal operating temperatures associated with a flush mounting box. If after a period of time mounting box 1 is no longer required in its present format, the adhesive can be melted, e.g. by blowing hot air onto the mounting flange, which can then be removed.
  • Another possibility is to use a hole saw to open up the connection between the mounting flange and flush mounting box, near open end 24.
  • the upstanding circumferential edge 34 can be used as an alignment guide for the hole saw with a diameter which essentially matches the dimensions of open end 24.
  • flush mounting box 2 and mounting flange 3 can also be made in one piece from plastic material. In that case it is possible to include a break-off notch or thinner wall near the transition between mounting flange 3 and flush mounting box 2.
  • connection between flush mounting box 2 and mounting flange 3 can also be opened up, when the complete unit is installed in the wall, by inserting a screw driver between mounting flange 3 and the wall and levering mounting flange 3.
  • the break-off notch will snap as a result enabling mounting flange 3 to be removed from flush mounting box 2.
  • Supporting brackets 35 e.g. two supporting brackets 35 facing each other, are fitted near the internal circumference of mounting flange 3 and protrude into flush mounting box 2, as illustrated in figures 3 and 4 .
  • Each supporting bracket 35 is fitted with mounting means 36, 37 to connect various electrical components with mounting box 1.
  • These mounting means consist of a central screw hole 37 and two adjoining clamping lugs 36, which have a chamfer at the top to give them grip above supports 46, which are part of an electrical component 40 (e.g. a socket) that can be snap fitted into the flush mounting box, see figure 4 .
  • flush mounting box embodiment illustrated in figures 1-3 is essentially in the shape of a cylinder, skilled technicians will understand that other shapes, e.g. a cuboid, prism, etc. are also feasible.
  • FIG 5 illustrates a second embodiment of a mounting box according to the present invention.
  • mounting box 101 comprises a flush mounting box 102 and ring shaped mounting flange 103.
  • Flush mounting box 102 has a mainly cylindrical body 121 with an end wall 122 and open end 123. The end edge 124 of open end 123 is connected with a watertight seal to mounting flange 103.
  • schematically illustrated mounting means 135, 135' are fitted to the internal wall of the flush mounting box 102.
  • These mounting means could, for example, be similar to those described in figures 1-3 , but in this case they are fitted to supports connected to the internal wall rather than on brackets connected to the mounting flange.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Casings For Electric Apparatus (AREA)
  • Connection Or Junction Boxes (AREA)

Description

  • The present invention relates to a mounting box for mounting in a wall for housing therein electrical components such as sockets, switches, etc., according to the preamble of claim 1.
  • Flush mounting box assemblies are a known concept in the electrical industry. They offer the advantage of having an electrical item such as a socket, switch, network connection point, etc. safely built into the wall. With this set-up the necessary cable connections are made inside the mounting box to ensure that, after installation, only a very small part of the functional unit is located on the outside of the wall. Specific features of these flush mounting box assemblies are standardised, including the Belgian NBN C 61-670 standards, to make it easier for the end user to replace installed components without having to replace the flush mounting box.
  • The known type of flush mounting assembly comprises a hollow box open at one end, which can be mounted into a cutout in the wall and is intended to provide a space in which an electrical component can be installed, or partially installed, through the open end. With the known mounting box the electrical component is secured in the flush mounting element with screws or clamps. A cover, with a surface area greater than the open end of the flush mounting element and wall opening, is then placed over the electrical component to ensure that the wall opening is covered as necessary.
  • To create an adequate dustproof and watertight seal on the known flush mounting box for example in accordance with the IP-55 standard, an elastic seal is installed between the cover and the wall. This seal is slightly compressed between the cover and the wall as the cover is secured thus creating a more or less dustproof and watertight seal between the environment and the interior of the box. Such flush mounting box can be found in WO 02/13346 .
  • The disadvantage of this approach is that it is difficult to achieve an entirely waterproof seal when mounting on an uneven wall surface. On such surfaces the seal between the wall and cover does not compress evenly, or does not compress at all, over the entire circumference which means there is a risk of water penetration at these points.
  • US 7,674,974 which reflects the preamble of claim 1 discloses a plurality of siding flange implementations comprising weatherproof siding flanges combined with an electrical wall box or a while-in-use electrical cover. The siding flange may be integrally formed with the electrical box or removably coupled to the electrical wall box, for example, on an inside surface of the box. The siding flange may comprise a lip extending forward of the siding flange and having one or more grooves therein. The grooves may allow portions of the lip to be removed to adapt to varying siding material thickness.
  • The purpose of this invention is to provide for a flush mounting box with improved dustproof and watertight properties.
  • This is achieved by the mounting box of claim 1. The mounting box comprises a flange mounted at the open end. When in place the flange is configured to cover the opening in the wall. It is also fixed to the mounting box by means of a watertight seal and can be removed, at least to a large extent, with one or more specific post processing operations.
  • Due to the fixed connection between the mounting flange and hollow flush mounting box, water penetration is prevented and thus improved waterproofness is guaranteed, irrespective of whether the wall in which the mounting box is housed has an even surface or hot. This makes it possible, for instance, to use the mounting box based on this invention in external walls with a slightly uneven surface, e.g. preformed bricks, uneven plastering or natural stone. Furthermore, by completely or partially removing the mounting flange, the mounting box of this invention can be converted into a reduced form which can be used for other applications.
  • With one version of the mounting box based on this invention the hollow flush mounting element has a mainly cylindrical external wall with a first closed and a second open end. This means that the wall opening can be made by simply using a hole saw with a diameter slightly larger than the external diameter of the outer cylinder wall. In a specific embodiment, the outer cylinder wall has a diameter between 55 and 80 mm.
  • The mounting flange has essentially a frame shape, with an essentially smooth rear side intended to face the wall when mounted and a front side configured to connect to the cover frame of an electrical component. In the case of a frame having a horizontal edge, this embodiment has the advantage that the mounting box can easily be levelled by, for example, placing a spirit level on the horizontal edge of the frame during installation.
  • In a further embodiment, the essentially smooth rear side of the flange has a groove around its circumference for the application of sealant. This embodiment has the advantage that an additional seal can be achieved between the frame and wall, to seal any gaps between them. On a smooth wall this will prevent the penetration of dust or water into the opening in which the flush mounting element is installed. The seal will preferably be elastomer.
  • In an embodiment of the mounting box according to the present invention the unit made up of the mounting flange and flush mounting element is such that, upon installation in a wall, it can easily be divided, whereby at least the section of the flange protruding from the wall can be sectioned off. The advantage of this embodiment is that the mounting box can thus be adapted to standard dimensions and electrical components built to these dimensions can be mounted in the usual manner.
  • In an embodiment of the mounting box according to the present invention, the connection between the mounting flange and flush mounting element can be disassembled using a hole saw. This embodiment has the advantage that the same type of tool used to create the hole in the wall can be used to section off the mounting flange. In a specific embodiment, the mounting flange has guide marks on the front to align the hole saw. In a more specific embodiment, the guide marks are constructed by a frame type upstanding edge on the front of the mounting flange, within which the hole saw can be positioned, with a diameter that in essence matches the diameter of the open end.
  • The watertight connection is created by applying a watertight adhesive between the mounting flange and flush mounting element. In a specific embodiment the watertight adhesive is configured to soften upon heating to ensure that the mounting flange can be removed from the flush mounting element once the adhesive seal between the two has been heated. This embodiment has the advantage that the mounting flange can easily be taken off without the risk of damage to the wall or other components of the mounting box. In a preferred embodiment, the adhesive is configured to soften at a temperature in excess of 70 degrees Celsius, preferably in excess of 80 degrees Celsius and between 80 and 200°C.
  • In an embodiment of the mounting box according to the present invention, the mounting flange and flush mounting element are made of plastic and the watertight seal is created by a plastic weld. This embodiment has the advantage that plastics with good mechanical properties but which are difficult to bond, such as specific types of polypropylene, can still be used to manufacture the mounting box according to the present invention.
  • In an embodiment of the mounting box according to the present invention, the mounting flange and flush mounting element consist of a single unit made of plastic. This embodiment has the advantage that extremely high water tightness and mechanical strength can be achieved. In a specific embodiment, a break-off notch is foreseen, which facilitates a simple separation of the mounting flange from the flush mounting element.
  • The mounting flange is equipped with mounting means, protruding from the flush mounting element, coupleable with an electrical component. In the case of the presence of the mounting flange, the installation of the electrical component in the mounting box is greatly simplified while the dimensions of the flush mounting element remain the same after removal of the flange. In a specific embodiment, the mounting means and mounting flange are a single piece. These types of mounting means may, for example, comprise one, two or more supports, e.g. brackets, projecting from the mounting flange into the flush mounting element. These supports could then be equipped, for example, with clamps to clamp electrical components or with threaded holes.
  • According to another aspect, the present invention also includes a method for post processing of the mounting box according to the present invention, comprising at least the removal, to a large extent, of the mounting flange. In accordance with the various described versions of the mounting box this can be achieved by drilling with a hole saw or heating up the adhesive bond.
  • A number of non-limiting embodiments of the present invention will be described by way of example with reference to the accompanying drawings, in which:
    • Figure 1 shows a schematic perspective view of a first embodiment of a mounting box according to the invention, in which the rear of the flush mounting element and rear of the mounting flange are visible;
    • Figure 2 shows a schematic perspective view of the embodiment in figure 1, in which the open end of the flush mounting element and front of the mounting flange can be seen;
    • Figure 3 shows a top view of the embodiment in figure 1, looking at the front of the mounting flange;
    • Figure 4 shows a detailed view of mounting means connected to a mounting flange;
    • Figure 5 shows a schematic view of a second embodiment of the mounting box according to the invention.
  • Figures 1-3 illustrate a first embodiment of a wall mounting box 1 according to the present invention. This type of mounting box is intended to house electrical components such as sockets, switches, etc. In essence the mounting box consists of a flush mounting element 2 and mounting flange 3.
  • The flush mounting element 2 is typically a flush mounting box designed to comply with the Belgian NBN C 61-670 standard or equivalent international standards such as DIN 49073. The hollow flush mounting element 2 has a cylindrical body 21 with an end wall 22 at one end and an opening 23 at the other end. The external diameter of the flush mounting element is typically between 55 and 80 mm, for example, approximately 70 mm. The internal depth of the flush mounting housing is typically between 40 and 80 mm, for example, approximately 50 mm. The flush mounting element 2 can be mounted in an opening in the wall. If the flush mounting element has a cylindrical shape this opening will typically be created using a hole saw. Inside flush mounting element 2 is a space in which components such as sockets or switches can be inserted, at least partially, via opening 23.
  • Mounting flange 3 extends from the open end 24 around opening 23. The mounting flange may also comprise components 35-37 that extend into the body of the flush mounting element, as described in detail below. In the illustrated embodiment, mounting flange 3 is shaped like a frame with an essentially square external circumference 39 and internal circumference 38, which is adapted to the dimensions of opening 23. The mounting flange will, therefore, extend around the wall opening when mounting box 1 is mounted in the wall. Flush mounting element 2 may also be equipped on the inside with threaded holes 51 for screws 50, which protrude through mounting flange 3.
  • Mounting flange 3 is secured via a watertight connection, for example in this case an adhesive bond or weld, to open end 24 of flush mounting element 2. In this case open end 24 has a smooth circumferential edge which fits against the smooth rear side 31 of the mounting flange. This way the adhesive can easily be applied to this smooth circumferential edge. As will be described in more detail below mounting flange 3 can be removed, at least to a large extent, from flush mounting housing 2 once it is wall mounted via one or more specific post processing operations.
  • Mounting flange 3 and flush mounting housing 2 could, for example, be of injection moulded plastic material with appropriate properties such as polypropylene. If the components are bonded by an adhesive, different material types can be used for the flush mounting element and mounting flange, e.g. a plastic flush mounting housing can be combined with a mounting flange made of another material such as stainless steel.
  • Mounting flange 3 has in essence a smooth rear side 31, which is intended to face the wall when mounted. A circumferential groove 32 for a (not illustrated) seal at the rear is optional. This seal could be in the shape of a sealing gasket extending across the entire rear side 31, between the outer wall of flush mounting element 2 and the external circumference of mounting flange 3, with a chamfer near circumference groove 32. Particularly with an uneven wall, e.g. a brick built wall, this type of sealing gasket will compensate for any play or openings between the rear of mounting flange 3 and the wall.
  • Mounting flange 3 also has a front 33 intended to connect to a (not illustrated) cover frame or plate, which is part of electrical components such as sockets or switches. With respect to the embodiment illustrated in figures 1-3, the cover frames and plates usable, for example, for the applicant's known mounting boxes can also be used with the mounting boxes based of the invention. The front is preferably fitted with an upstanding circumferential edge 34. In the illustrated version this upstanding edge 34 has two advantages: it facilitates on the one hand the positioning of a cover frame or plate and on the other hand the positioning of a hole saw within this circumferential edge to drill the mounting flange near open end 24.
  • Mounting box 1 mounted into the wall with a part such as mounting flange 3 protruding from it, can be removed relatively easily, whereby the remaining part, i.e. flush mounting element of box 2, has standard dimensions so that it can be used for another application in accordance with the standard and as such complies with the Belgian NBN C 61-670 standard. Threaded holes 51 and screws 50 make it possible to mount other cover frames on the flush mounting box 2.
  • According to a possible embodiment a special adhesive will be used for the connection between flush mounting box 2 and mounting flange 3. This adhesive will soften at high temperatures, for example from approximately 75°C, i.e. temperatures that exceed the normal operating temperatures associated with a flush mounting box. If after a period of time mounting box 1 is no longer required in its present format, the adhesive can be melted, e.g. by blowing hot air onto the mounting flange, which can then be removed.
  • Another possibility is to use a hole saw to open up the connection between the mounting flange and flush mounting box, near open end 24. In that case the upstanding circumferential edge 34 can be used as an alignment guide for the hole saw with a diameter which essentially matches the dimensions of open end 24. It is, therefore, also possible to connect flush mounting box 2 and mounting flange 3 using any appropriate watertight adhesive or by welding. The mounting flange and flush mounting box can also be made in one piece from plastic material. In that case it is possible to include a break-off notch or thinner wall near the transition between mounting flange 3 and flush mounting box 2. With a break-off notch the connection between flush mounting box 2 and mounting flange 3 can also be opened up, when the complete unit is installed in the wall, by inserting a screw driver between mounting flange 3 and the wall and levering mounting flange 3. The break-off notch will snap as a result enabling mounting flange 3 to be removed from flush mounting box 2.
  • Supporting brackets 35, e.g. two supporting brackets 35 facing each other, are fitted near the internal circumference of mounting flange 3 and protrude into flush mounting box 2, as illustrated in figures 3 and 4. Each supporting bracket 35 is fitted with mounting means 36, 37 to connect various electrical components with mounting box 1. These mounting means consist of a central screw hole 37 and two adjoining clamping lugs 36, which have a chamfer at the top to give them grip above supports 46, which are part of an electrical component 40 (e.g. a socket) that can be snap fitted into the flush mounting box, see figure 4.
  • Although the flush mounting box embodiment illustrated in figures 1-3 is essentially in the shape of a cylinder, skilled technicians will understand that other shapes, e.g. a cuboid, prism, etc. are also feasible.
  • Finally, figure 5 illustrates a second embodiment of a mounting box according to the present invention. In this case, mounting box 101 comprises a flush mounting box 102 and ring shaped mounting flange 103. Flush mounting box 102 has a mainly cylindrical body 121 with an end wall 122 and open end 123. The end edge 124 of open end 123 is connected with a watertight seal to mounting flange 103. Furthermore, schematically illustrated mounting means 135, 135' are fitted to the internal wall of the flush mounting box 102. These mounting means could, for example, be similar to those described in figures 1-3, but in this case they are fitted to supports connected to the internal wall rather than on brackets connected to the mounting flange.
  • This invention is not limited to the different embodiments described above and a person skilled in the art will understand that many modifications and variations are feasible without abandoning the framework of this invention. This invention is exclusively defined by the following claims.

Claims (15)

  1. Mounting box (1, 101) for mounting in a wall to house electrical components (40), the mounting box comprising:
    - a hollow flush mounting element (2, 102) with an open end (23, 123), said flush mounting element (2, 102) can be installed in an opening in a wall and is intended to create a space in which said electrical components (40) can be installed, or partially installed, through the open end (23, 123);
    - a mounting flange (3, 103) facing outward from the open end (23, 123) configured to extend around the wall opening once mounted; wherein the mounting flange (3, 103) is fixedly connected via a watertight connection to the hollow flush mounting element (2, 102) and can, at least to a large extent, be removed with one or more specific post processing operations; characterized in that the watertight connection is formed by applying a watertight adhesive between the mounting flange (3, 103) and flush mounting element (2, 102);
    in that the mounting flange (3, 103) has a frame shape with an essentially smooth rear side (31) intended to face the wall when mounted; and a front side (38) configured to connect to the cover frame of an electrical component; and
    in that the mounting flange (3, 103) has mounting means (36, 37) protruding in the flush mounting element (2, 102) which mounting means are coupleable to the electrical component.
  2. Mounting box (1, 101) according to claim 1, characterized in that the open end (24, 124) has a smooth circumferential edge, whereby the watertight adhesive is foreseen between the smooth circumferential edge (24, 124) and mounting flange in order to obtain a watertight connection between the mounting flange (3, 103) and flush mounting element (2, 102).
  3. Mounting box (1, 101) according to claim 1 or 2, characterized in that the watertight adhesive is configured to soften upon heating so that the mounting flange (3, 103) can be removed from the flush mounting element (2, 102) once the adhesive bond between them has been heated.
  4. Mounting box (1, 101) according to any of the preceding claims, characterized in that the mounting box (1, 101) can be converted into a standard flush mounting element with one or more specific post processing operations.
  5. Mounting box (1, 101) according to any of the preceding claims, characterized in that the hollow flush mounting element (2, 102) has an essentially cylindrical outer wall (21, 121) with one end sealed by the end wall (22, 122) and a second end (24, 124), whereby this second end (24, 124) forms the open end (23, 123) of the hollow flush mounting element (2, 102).
  6. Mounting box (1, 101) according to claim 5, characterized in that the cylindrical outer wall (21, 121) has a diameter between 55 and 80 mm.
  7. Mounting box (1, 101) according to any of the preceding claims, characterised in that the essentially smooth rear side (31) has a circumferential groove (32) for the housing of a sealant.
  8. Mounting box (1, 101) according to any of the preceding claims, characterized in that the assembly of the mounting flange (3, 103) and flush mounting element (2, 102) is such that, upon installation in a wall, it can easily be sectioned, whereby at least the section of the mounting flange (3, 103) protruding from the wall can be sectioned off.
  9. Mounting box (1, 101) according to any of the preceding claims, characterized in that the connection between the mounting flange (3, 103) and flush mounting element (2, 102) can be disassembled using a hole saw.
  10. Mounting box (1, 101) according to any of the preceding claims, characterized in that the mounting flange (3, 103) has guide means (34) at the front to align the hole saw.
  11. Mounting box (1, 101) according to claim 10, characterized in that the guide marks are formed by a frame type upstanding edge (34) on the front of the mounting flange (3) for positioning a hole saw with a diameter that essentially matches the diameter of the open end (23).
  12. Mounting box (1, 101) according to any of the preceding claims, characterized in that the internal circumference of the mounting flange (3) has at least one supporting bracket (35) protruding into the flush mounting element (2), whereby fixing means (36, 37) are connected to at least one supporting bracket (35).
  13. Mounting box (1, 101) according to claim 12, characterized in that the at least one supporting bracket (35), fixing means (36, 37) and mounting flange (3) are formed as a single unit.
  14. Method for the post processing of a mounting box (1, 101) according to any of the preceding claims, wherein the watertight connection is formed by applying a watertight adhesive between the mounting flange (3, 103) and flush mounting element (2, 102); wherein the method comprises the step of removing at least to a large extent the mounting flange (3,103) from the flush mounting element (2, 102); wherein removing at least to a large extent the mounting flange (3, 103) comprises the following steps:
    - heating of the watertight adhesive seal; and
    - breaking of the watertight connection by removing the mounting flange (3, 103) from the flush mounting element (2, 102).
  15. Method for the post processing of a mounting box (1, 101) according to claim 10 or 11, wherein the mounting flange (3, 103) is fitted at the front with guide means (34) to align a hole saw, wherein the method comprises the step of removing at least to a large extent the mounting flange (3,103) from the flush mounting element (2, 102); wherein removing at least to a large extent the mounting flange (3, 103) comprises the following steps:
    - positioning of a hole saw using the guide means (34);
    - drilling the connection between the mounting flange (3) and flush mounting element (2); and
    - removing the mounting flange (3) from the flush mounting element (2).
EP11161923.5A 2010-04-12 2011-04-11 Mounting box for mounting in a wall Active EP2375523B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE2010/0237A BE1019288A4 (en) 2010-04-12 2010-04-12 MOUNTING BOX FOR BUILT-IN IN A WALL.

Publications (2)

Publication Number Publication Date
EP2375523A1 EP2375523A1 (en) 2011-10-12
EP2375523B1 true EP2375523B1 (en) 2016-06-08

Family

ID=43085835

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11161923.5A Active EP2375523B1 (en) 2010-04-12 2011-04-11 Mounting box for mounting in a wall

Country Status (5)

Country Link
EP (1) EP2375523B1 (en)
BE (1) BE1019288A4 (en)
DK (1) DK2375523T3 (en)
HU (1) HUE030571T2 (en)
PL (1) PL2375523T3 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2597743B1 (en) * 2011-11-23 2017-07-19 Schneider Electric Danmark A/S An installation box for mounting an electrical installation device
DK2822119T3 (en) * 2013-07-05 2016-03-07 Abb Oy Mounting box
FR3020515B1 (en) * 2014-04-28 2018-07-13 Legrand France CLADDING PLATE FOR ELECTRICAL EQUIPMENT AND METHOD OF DISASSEMBLING THE SAME PLATE

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19636500C2 (en) * 1996-09-09 2002-11-07 Abb Patent Gmbh Water-protected installation device
US6355882B1 (en) * 1999-08-13 2002-03-12 Arlington Industries, Inc. Flush-mount electrical junction box
FR2812788B1 (en) * 2000-08-07 2003-08-08 Aventis Pasteur WATERPROOF HOUSING FOR BUILT-IN APPARATUS IN A WALL
US7674974B1 (en) * 2006-03-09 2010-03-09 Taymac Corporation Weatherproof siding flange
US20080093099A1 (en) * 2006-10-16 2008-04-24 Alcan International Limited Electrical Box Ring and Method for Manufacturing The Same

Also Published As

Publication number Publication date
EP2375523A1 (en) 2011-10-12
PL2375523T3 (en) 2017-01-31
BE1019288A4 (en) 2012-05-08
HUE030571T2 (en) 2017-05-29
DK2375523T3 (en) 2016-08-22

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